20.03
fri
fri
Day
81°F
W 16 mph
Precip.
0%
0%
Night
75°F
W 10 mph
Precip.
77%
77%
21.03
sat
sat
Day
81°F
W 13 mph
Precip.
87%
87%
Night
77°F
NW 8 mph
Precip.
100%
100%
22.03
sun
sun
Day
81°F
W 12 mph
Precip.
0%
0%
Night
77°F
W 9 mph
Precip.
0%
0%
23.03
mon
mon
Day
81°F
W 12 mph
Precip.
100%
100%
Night
77°F
W 12 mph
Precip.
0%
0%
24.03
tue
tue
Day
81°F
W 14 mph
Precip.
0%
0%
Night
77°F
W 15 mph
Precip.
89%
89%
25.03
wed
wed
Day
81°F
W 16 mph
Precip.
0%
0%
Night
77°F
SW 16 mph
Precip.
64%
64%
26.03
thu
thu
Day
81°F
W 19 mph
Precip.
0%
0%
Night
77°F
W 17 mph
Precip.
81%
81%
sea water
temperature
temperature
| Castries |
monthly
weather
weather
| Castries |
current
weather
weather
| Castries |
14 days
forecast
forecast
| Castries |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 81.1°F and 79.5°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 82.0°F and 80.6°F.
Air temperature in Castries, °F
Precipitation total in Castries, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Castries
Castries on a weather map
24 Hours Forecast
Castries
Local time: 16:04
March 20, friday
1800
77°F
W
12 mph
12 mph
2100
77°F
W
11 mph
11 mph
March 21, saturday
0000
75°F
W
10 mph
10 mph
0300
75°F
W
11 mph
11 mph
0600
75°F
W
8 mph
8 mph
0900
79°F
W
10 mph
10 mph
1200
81°F
W
13 mph
13 mph
1500
81°F
W
12 mph
12 mph
